Carbureter-adjusting mechanism.



H. H. FREY.

CARBURETER ADJUSTING MECHANISM.

APPLICATION FILED Nov. 11. 191|.

1,146,322 Patented July 13, 1915.

2 SHEETS-SHEETVI.

la Mmmm E y Fl, l

WITVESSES' IJV PENTR HERBERT H'- FREI;

ATTRNEYS H. H. FREY.

CARBURETER ADJUSTING MECHANISM.

APPLICAUoN FILED Nov. 11. 1911.

l. 146.322. Patented July 13, 1915.

2 SHEETS-SHEET 2- WI TNE/S''E'. IJV VEN T011 HERBERT H/FREY @www AT ToNE'Y is provided with a cylindrical head 20, with which it has a driving fit, and this head is mounted snugly in a cylindrical auxiliary casing 2l supplementing the main casing ll at the 'end thereof. This supplementary cas.

ing has the tangential extending boss 22 in which the end of a eXible tube 23 may be clamped by means of a set-screw 2d. 'lhe periphery of the head 20 is provided with grooves 25, clearly shown in Figs. 3 and d, and a denible but sturdy strand 26, such as piano wire, is passed through the tube 23, the opening in the boss 22 and into the groove 25 which is disposed in alinement therewith. 'lhe wire 26 is passed around halt of the head 20, more or less, always lying in the groove 25, and the bend of the wire is passed inwardly through an opening 27 in the rim of the head, the head being dished to receive the sleeve 18. Extending inwardly from the taceA ot the head is a lug 28 through an opening 29 in which the wire,

26 extends, as clearly shown in Fig. Ylhe wire is held in this position by means oif .a

set-screw 30. lt will now be seen 'that when the wire is pushed or pulled it will not buckle,because it is properly conned at every point, but will serve to rotate the sleeve l3 in a manner to cut otl or open up more or less ot the air passageway l5.

Referring now to Figs. 5 to 9 inclusive, it will be seen that the stationary element oit the adjusting mechanism is in the bottom ot the cylindrical casing 3l to the base 32 of which a circular clamp or yoke 33 is secured by means of screws 3d, 3l, these screws passn ing from the inside ot the casing through opgenings in the base and having threaded engagement with the enlarged part 35 oi the clamp. The tace oit this enlarged part is planar to correspond with the planar face of the base of the-casing. rlhe clamp 33 is split, as indicated at`36, and the parts are held together and sprung upon the steering column of the chamber, as will be described later, by means of a clamping screw 37. Mounted to rotate within the casing 3l is a shell 38, the face 39 of this shell being extended periple'rally beyond the rim t0 thereof so that it :torm a complete facial cover for the casing. The rim d() sets in the casing with a hearing ht and is provided kwith a peripheral groove ll in part of which the wire 26 is laid, the end ot this wire being passed inwardly through an opening d3 in an enlarged part lll extending inwardly from the rim d0, as illustrated in Figs. 3 and 9.; ylhe wire 26 is held in this position by means of a set-screw d5 entering from. the

that the tube 23 'which is lodged in the outside. The casing 3l isprovided with a tangential boss i6 which is adapted to re ceive the end ot a dexible tube 23, the mer being split as indicated at 43 so a set-screw 4:9 may firmly clamp the latter in place. The wire 26 passes out ol the casing through this tube as shown inthe drawings. The shell 33 is provided with an axial opening i7 through which an axial stud i3 extending from the base 32 to the casing 3l passes, this stud having a reduced end for the reception of a collar i9 and a clamping nut 59. 'llhis arrangement holds the shell against withdrawal and ,at the same time permits rotary movement which is facilitated by the provision of an operating lever 51. Since the collar49 is held stationary by means of the nut 50 it may conveniently be provided with a divisional scale, as illustrated in Fig. 5, so that an indicating arrow 52 on the face or" the shell 38 may co* operate therewith to apprise the operator of the position oit the adjuster. rllhe `lace of the shell may also be provided with other inscriptions to indicate the direction of movement `lor certain adjustments, as illus trated in Fig. 5. lt will now be seen that the wire which is connected with the rot ing head 20 oiithe carbureter is the s wire which is connected with the rota shell 33 ot the adjusting mechanism,

22 ot the carburetor is the same tube is secured in the boss d6 of the adjuster asing.o ln other words, the adj usting mechai which has just been described is mechanica c'iinected with the adjustable element o; carburetor by means of a heXible eleinei the form ot a wire coniined at all poi against buclrling by means of a tube rounding it.. When the handle 5l is nio the sleeve le ot the carbureter is moved a the size oi the air passage is changed. operation may be had in either direction The tendency of the wire to resist ben insures suilicient friction to cause the p to remain in any position into which ti are moved; The element 26 is flexible in sense that it will withstand consider bending without danger ol breakage but in Lit short4 lengths this element may be and preil erably is relatively stid. llt is thus in e a very slender column which would tend to buckle when placed under compression.

ln Fig. l0 the framework of an autoincl-f bile is shown at 52. rlhe iront hood shown at 53 and the engine is illustrated at 541. 'lhe carbureter 1l is connected with manifold of the engine, as heretofore po ed out, and the tlenible tube 23 containing ll/ the wire 26 extends 'from the carburetor the casing 3l which is mounted upon steering column 55, as illustrated in Figs. and l0. rfhus, even while the machine if; running, the driver may readily manana proportion between the air and fuel, in order that the best mixture for the purpose may be had at all times, by merelymanipulating the lever 51 and he may have this lever where it bests suits his convenience. ln the manipulation of the adjusting mechanism, the movement is limited by the engagement of the enlargement 44 on the shell 38, which engagement engages one or the otherof the screw heads 84, 34. At one limit of its movement the leanest mixture is secured and at the other limit the richest mixture is secured.

l claim as new and desire to secure by Letters Patent:

1. ln adjusting mechanism for carbureters, a hollow cylindrical casing having a tangential boss, a cylindrical drum closely iitting into said hollow casing and rotatably mounted therein, said boss having a bore tangential with the periphery of said casing, and a single length of relatively sti' wire attached to said drum and passing through said tangential bore, said wire being confined between said casing and drum and by the bore of said boss to prevent buckling when said wire is placed under compression.

2. ln adjusting mechanism, a hollow cylindrical casing having a hollow tangential boss, a cylindrical drum closely itting into said hollow casing and rotatably mounted therein, said drum having a single peripheral groove, a single length of relatively stili wire attached to said drum and lying in said groove, said hollow boss having its bore tangentto the groove in said drum, a handle attached to said drum to rotate the same positively in either direction, said wire being conned laterally by said groove and .said casing to prevent buckling under compression.

. 3. ln combination, a hollow cylindrical casing having a hollow tangential boss, a hollow drum having a peripheral groove closely fitting into said casing, the bore of said hollow boss being substantially tangent to, said peripheral groove, a single length of relatively sti' wire attached to said drum, said wire being confined in said boss and in said lgroove against buckling under compression, and a clamp and means projecting into said hollow drum for attaching Ysaid clamp to said casing.

4. ln combination, a hollow cylindrical casing having a hollow tangential boss and a stem centrally projecting from said casing, a hollow drum rotatably mounted on said stem and tting closely within said casing, said drum having a peripheral groove, a head on said drum, a handle mounted on said head, a metal `tube fastened in the bore of said tangential boss, said tube having its bore substantially tangent with the groove in said drum, and a single length of relatively stiid yWire attached to said drum and supported against lateral movement by said groove, said casing Aand the metal tube in said boss.

5. In adjusting mechanism for carbureters, a cylindrical casing, a drum rotatably mounted in said casing, a single length of wire only secured to said drum and extending out through the opening in said casing, a handle mounted on said drum, a supporting clamp, screws extending from the inside of said casing through the base thereof and into said clamp and a part carried by said drum for `engaging the heads of said screws to limit the movement of said drum. v

6. ln adjusting mechanism for carbureters, a hollow cylindrical casing, a hollow drum closely fitting in said casing and rotatably mounted therein, said drum having a peripheral groove, a lugprojecting radially inward from said hollow drum, a wire secured to said lug and confined in said peripheral, groove, said wire extending out through a tangential opening in said casing, a khandle mounted-on said' drum, a supporting clamp, and screws extending from the inside of said casing through the base thereof and into said clamp, said radial lug engaging the heads of said screws to limit the movement of said drum.

7.l ln an adjusting means tor acarbureter, a movable drum, a casing surrounding said drum, said drum being provided with a peripheral groove, a single length of wire atltached .to said drum and lying in said groove, a tangential guide on said casing, said guide conning said wire Aagainst buckling, a handle attached to said drum to move the same in either direction of rotation, and an operated element attached to the end of said wire, said element moved by movement of the handle to place the wire under tension or compression.

8. 1n an adjusting means for a carbureter, a drum, a casing surrounding said drum, a single length of wire attached to said drum, said drum `being provided with a groove for confining said wire against lateral movement, a guide attached tangentially to said casing confining said wire against lateral movement, a second drum having a groove, and a casing surrounding said second drum, said wire being attached to said second drum and confined against lateral movement by the groove in said seconddrum and the casing surrounding the same, said guide being also attached tangentially to said second casing to confine the wire against buckling throughout its entire length.

9. ln combination a pivoted manually operable element having a guiding face to counteract buckling, a second pivoted elemelnt to be operated, a transmission element connected to said elements, the said transmission elenient comprising a single length 

